We claim the ornamental design for a lighting fixture, as shown and described.
FIG. 1 is a top perspective view of a lighting fixture showing our new design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a left-side view thereof;
FIG. 8 is a right-side view thereof; and,
FIG. 9 is a side cross-sectional view taken along line 9-9 in FIG. 1.
Features illustrated in broken lines form no part of the claim and are illustrated to indicate context or environment only. Numbered lines and arrowheads shown in the drawings also form no part of the claimed design, and are present only to indicate the imaginary lines along which certain cross-sectional views are taken as described herein.